The customer is already using Aruba Gateway and third-party L2 switches New ArubaOS CX 6300 switches have been deployed for R&D. which have a requirement for user profiling and tunneled traffic between ArubaOS CX 6300 and Aruba Gateway What is required for this configuration to apply QoS user-based rules for the R&D client traffic?
A. Apply a QoS rule to the ArubaCX 6300 client port, lo classify traffic before it is tunneled.
B. Apply a port-access policy with QoS defined in the user role on the ArubaOS CX6300 switch
C. Manually prioritize IP protocol 47 traffic on the third-party switches to prioritize the tunneled traffic
D. Create a QoS policy for the UBT-client-VLAN traffic on the third-party switch.